schaerer



(No Model.) Aa shets-sheet 1.

C. SCHARRBR. MACHINE POR CLEANING GARPETS.

Patentd Nov. 24, 1896.

gli x o lll-lll l lll...

QN fr u in '..slllllllll l|I\ mi norms Ferias cm vauro-Limo., wAsmNo-mn. n. c,

(No Model.)

Patented Nov. Z4, 1896.

:s P zas ca, Paura-urna. wAsn-nunron. n. c.

(No Model.) 3 Sheets-Sheet 3. C. SCHARRER.

MACHINE PoR CLEANING GANPBTS. No. 571,981. Patented'Nov. 24, 1896.

um Penas cc.. wom-umu., wAsmucron, n. c.

UNITED STATES PATENT OEEicE.

CARL SCHARRER, OF I-IEIDENHEIM-ON-THE-BRENZ, GERMANY.

MACHINE FOR CLEANING CARPETS.

'SPECFICATION forming part of Letters atent No. 571,981, dated November 24, 1896.

Application file June 15, 1395. Serial No. 552,833. (No model.) Patented in France .Tuly 13,1893,No. 231,524; in England July 14, 1393, No. 13,713, and in Germany July 14, 1893, No. 76,338.

To all whom it muy concer/t.-

Beit known that I, CARL SCHARRER, a subject of the German Emperor, residing at IIeidenheim-on-the-Brenz, Germany, have invented certain new and useful Improvements in Machines for Cleaning Carpets, (for which Letters Patent have been obtained in Great Britain, No. 13,718, dated July 14e, 1393; in France, No. 231,524, dated July 13, 1393, and in Germany, No. 76,338, dated July 14,13933) and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to letters of reference marked thereon, which form a part of this speciiication.

My invention has relation to machines for cleaning carpets; and it has for its object certain improvements whereby the efficiency of these machines is materially enhanced and the power to operate the same, as well as the labor, reduced; but that my invention may be fully understood I will describe the same in detail, reference being had to the accompanying drawings, in which- Figure 1 is a vertical longitudinal sectional view of a carpet-cleaning machine embodying my invention. Fig. 2 is a vertical transverse sectional view of the machine, taken on or about on line 2 2 of Fig. 1, looking toward the left; and Fig. 3 is a horizontal section of said machine, taken on or about on line 3 3 of Fig. 1.

As shown in the drawings, the primary cleaning devices are contained in a housing or casing S, provided with an inlet-slot a and an outlet-slot d', extending across the bottom thereof, from the edges of vwhich project guide plates or iianges a?, that guide the carpet, said housing being provided at top with a pipe h for connection with any suitable exhaust apparatus. (Not shown.)

In a bracket secured to the rear wall of the housing S are formed bearings for the shaft or journal of a cloth-beam A, upon which the carpet G to be cleaned is wound, said carpet being guided from the beam A to the feedslot a by a suitable number of guide-rolls f and tension-rolls n, the latter maintaining the carpet at a proper tension.

manner that said brushes and beat-er will operate upon the opposite side thereof. By means of the described arrangement of devices the carpet is first subjected to a preparatory brushing by brushes w w, which remove the surface dirt and open up the nap and facilitate the loosening or beating out of the dirt held by said nap on one side of the garpet, after which the carpet is subjected to the action of a beater on the other side, and then again to the action of brushes and a beater, the lint or fiber, dust, and other impurities being drawn out of housing S through pipe h.

In order to subject every part of the carpet to an energetic beating action without injury thereto, I construct the beaters N and N' as follows: Upon a shaft S is secured one end of a series of flexible arms s', preferably flat strips or bands of leather or steel, whose opposite end is secured either to a cylindrical bar or to a bar that is polygonal or ellipsoidal in crosssection, in such manner that the bar will impinge flat upon the carpet-that is to say, throughout its whole length-said bars being of a length substantially equal to the width of the space within the housing S.

By means of the described construction of beaters and the relative arrangement of brushes, and by suitably regulating the speed of rotation of said devices relatively to the speed of travel of the carpet, every portion thereof is exposed to the action of the cleaning devices without being injured thereby.

In order that the impurities may be more eifectually removed from the fabric, I so arrange the driving mechanism that the brushrolls of each pair w w and w'u' revolve in opposite directions, one brush acting in the direction of and the other against the nap of the fabric, as indicated by arrows, Fig. 1. Practice has demonstrated, however, that it is not possible to exhaust the lint or loose IOO fiber, the dust, and other impurities as fast as removed from the material by the cleansing devices, some of the impurities settling on the web before it can leave the housing S. In order to remove these impurities, I provide another set of revoluble brushes Z) h', arranged outside of the housing S at the delivery end, to which brushes the carpet is guided by guide1olls h2 in such manner that one of said brush-rolls will operate upon one side and the other upon the opposite side of the carpet, preferably against the nap, as indicated by arrows. Beneath each brush-roll Z) b is a dust-collector t. and 7J, respectively, both of which may be connected with a separate exhaust apparat-us, or said collectors may be connected by pipes e with the exhaust apparatus for housing S, or, as shown, directly with the housing.

It will readilyT be seen that by means of the construction and arrangement of cleaning devices but an insignificant amount of lint, fiber, or dust will escape into the room in which the apparatus is installed, so that the health of the attendants is not in j uriousl y affected. Furthermore, but little labor is involved in attending to the machine, the cleaned carpet being iinally wound upon a cloth-beam B, to which it is guided by a roll B.

The direction of rotation of the revoluble elements I have indicated by arrows in the drawings, and said elements may be driven in any suitable manner, as bybelt-pulleys or chain or other gearing from any desired motor.

It will of course be understood that the brush-rolls are, like the beater-arms, of a length equal to the width of the interior of the housing S, so as to operateupon the whole width of the carpet.

I have described my invention in its application to the cleansing of carpets; but I do not limit myself to this use, as other fabrics or materials in the web may be cleansed or dusted or freed from fiber or lint.

Having thus described myinven tion, what I claim as new therein, and desire to secure by Letters Patent, is-

l. In a carpet-cleaningmachine, ahousing provided with an exhaust-duct, and with nai row inlet and outlet slots in its bottom, brush rolls, and a beater, arranged one above the other above the inlet-slot, and a beater and lju'ush-rolls arranged one below the other above the outlet-slot, and suitable guide-rolls adapted to guide the carpet relatively to said devices so that both sides of said carpet while traveling in a vertical direction from the inlet to the outlet slotwill be successively and repeatedly subjected to a brushing and beat-- ing action, for the purpose set forth.

2. In a carpetcleaning machine, a housing provided with an exhaust-duct, and with inlet and outlet slots in its bottom, of brushrolls arranged in pairs and adapted to revolve in opposite directions, beaters arranged to alternate with the sets of brush-rolls, and guide-rolls adapted to guide the carpet to said devices in such manner that one pair of brushes and a set of beaters will operate on one side, and the other pair of brushes and set of beaters upon the other side of the carpet during its travel in a vertical direction from the inlet to the outlet slot, for the purpose set forth.

In a carpet-cleaning machine, a main housing provided with an exhaust-duct and with inlet and outlet slots in its bottom, brushes and beaters arranged within the housing to subject both sides of the carpet to repeated alternate brushing and beating during the travel of the carpet in a vertical direction; in combination with an auxiliary,

housing provided with an exhaust-duct, and brushes in said housing arranged to act upon both sides of' the carpet, substantially as and for the purpose set forth.

at. In a carpet-cleaning machine, a main housing provided with an exhaust-duct and with inlet and outlet slots in its bottom, brushes and beaters arranged within the housing to subject both sides of the carpet to repeated alternate brushing and beating d ur ing the travel of the carpet in a vertical direction; in combination with an auxiliaryr housing provided with an exhaust-duct in communication with the main housing, and brushes in said auxiliary housing arranged to act uponboth sides of a carpet, substantially as and for the purpose set forth. A

5. In a carpet-cleaning machine, ahousing provided with an exhaust-duct, carpet-cleaning devices comprising'beaters and brushrolls arranged within the housing, in combination with brush-rolls arranged outside of said housing, a feed mechanism adapted to feed the carpet first to the cleaning devices Within the housing, then to the brush-rolls outside of said housing, guide-rolls arranged to guide the carpet so as to be operated upon on both sides by the said cleaning devices, and dust'collectors for the outside brushrolls provided-with exhaust-ducts, substantially as and for the purpose set forth.

'6. In a carpet-cleaning machine, the combination with a housing' provided with an exhaust-duct, a delivery roll or beam at one end, a winding-roll at the opposite end, and suitable tension and guide rolls t, f, i", 0*', b2, brush-rolls nf, w, w', w', and beaters N, N', arranged within the housing relatively to one another and to the guide-rolls r, 0", as set forth, of the outside brush-rolls arranged relatively to the guide-rolls b2 as described,

ICO

IIO

dust-collectors 7u, it", for said rolls b2, and eX- haust-ducts connecting said dust-collectors with the housing, as and for the purpose set forth.

In testimony that I claim the foregoing as my invention I have signed my name in presence of two subscribing witnesses.

CARL SCHARRER. lVitnesses:

C. FISCHER, K. WIESENMAN. 

